acu·le·us
| \ ə-ˈkyü-lē-əs \
plural aculei\
ə-ˈkyü-lē-ˌī
\
Definition of aculeus
zoology
: a sharp-pointed process
specifically
: an insect's ovipositor especially when modified into a sting
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“Aculeus.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/aculeus. Accessed 1 Mar. 2021.
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Time Traveler for aculeus
The first known use of aculeus was in 1702
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